A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5990-01-354-6255
NSN 6685-00-144-6362
NSN 6645-01-325-9849
NSN 6145-01-357-8436
NSN 6645-00-664-4665
NSN 2925-01-078-5702
NSN 5990-00-478-6518
NSN 6650-01-560-8576
NSN 5985-00-503-3492
NSN 6220-01-469-8846
NSN 4140-01-495-0865
NSN 5910-01-652-8456